The MapScaping Podcast - GIS, Geospatial, Remote Sensing, earth observation and digital geography

Semantic Search For Geospatial

Listen Later

This podcast episode is all about semantic search and using embeddings to analyse text and social media data.

Dominik Weckmüller, a researcher at the Technical University of Dresden, talks about his PhD research, where he looks at how to analyze text with geographic references. 

He explains hyperloglog and embeddings, showing how these methods capture the meaning of text and can be used to search big databases without knowing the topics beforehand.

Here are the main points discussed:

  1. Intro to Semantic Search and Hyperloglog: Looking at social media data by counting different users talking about specific topics in parks, while keeping privacy in mind.
  • Embeddings and Deep Learning Models: Turning text into numerical vectors (embeddings) to understand its meaning, allowing for advanced searches.
  • Application Examples: Using embeddings to search for things like emotions or activities in parks without needing predefined keywords.
  • Creating and Using Embeddings: Tools like transformers.js let you make embeddings on your computer, making it easy to analyze text.
  • Challenges and Innovations: Talking about how to explain the models, deal with long texts, and keep data private when using embeddings.
  • Future Directions: The potential for using embeddings with different media (like images and videos) and languages, plus the ongoing research in this fast-moving field.

    • Connect with Dominik Weckmüller here https://geo.rocks/

    Stay up to date with AI here

    https://huggingface.co/ Try searching for “map”  here https://huggingface.co/spaces

     

    Check out this project I am working on 

    https://quickmaptools.com/

     

    ...more
    View all episodesView all episodes
    Download on the App Store
    The MapScaping Podcast - GIS, Geospatial, Remote Sensing, earth observation and digital geographyBy MapScaping
    • 4.7
    • 4.7
    • 4.7
    • 4.7
    • 4.7

    4.7

    112 ratings

    More shows like The MapScaping Podcast - GIS, Geospatial, Remote Sensing, earth observation and digital geography

    View all
    This American Life by This American Life

    This American Life

    91,088 Listeners

    Radiolab by WNYC Studios

    Radiolab

    44,010 Listeners

    StarTalk Radio by Neil deGrasse Tyson

    StarTalk Radio

    14,232 Listeners

    The One You Feed by Eric Zimmer

    The One You Feed

    2,560 Listeners

    WSJ Tech News Briefing by The Wall Street Journal

    WSJ Tech News Briefing

    1,633 Listeners

    Talk Python To Me by Michael Kennedy

    Talk Python To Me

    587 Listeners

    SpyCast by SpyCast

    SpyCast

    1,522 Listeners

    The Daily by The New York Times

    The Daily

    112,376 Listeners

    Up First from NPR by NPR

    Up First from NPR

    56,444 Listeners

    Esri & The Science of Where by Esri

    Esri & The Science of Where

    40 Listeners

    FT News Briefing by Financial Times

    FT News Briefing

    675 Listeners

    1619 by The New York Times

    1619

    31,810 Listeners

    Hard Fork by The New York Times

    Hard Fork

    5,472 Listeners

    Huberman Lab by Scicomm Media

    Huberman Lab

    29,176 Listeners

    The Ezra Klein Show by New York Times Opinion

    The Ezra Klein Show

    16,144 Listeners